CHINO -- Law enforcement officials have established a cash reward and released more information about the sought-after bank robber who recently shot a police officer in this city.

Officials announced a $20,000 reward for tips that led to the man's capture at a news conference on Wednesday at the City Council Chambers.

"We want to keep this in the public eye. We are here to solicit the public's help," FBI Supervisor Special Agent Don Roberts said. "We do not know the identity of the bank robber so we want to get this image out."

Chino Police Chief Miles Pruitt said the Police Department would not rest until the suspect is caught.

"We're going to use all of our resources. We're going to use all of our partnerships in order to hunt this individual down," Pruitt said.

During the news conference, officials also released additional information about the time leading up to the actual robbery.

"Our dispatch center received a call from an anonymous male who was reporting a bomb threat at the south end of our city," Pruitt said.

Officials contend the robber, or a possible accomplice, called 9-1-1 before the crime on Feb. 29 to lure police away from the bank area.

"While several of our patrol officers were responding to that report of the bomb threat, we had other officers recognize that this was possible a rouse," Pruitt said.

Those other officers responded to banks throughout the city to conduct safety checks and make sure they were not being targeted for robbery.

About 10:50 a.m., dispatchers received report of shots fired and an officer down.

A police officer, who was patrolling the area near California Bank and Trust at 5455 Riverside Dr., saw the robber leaving the building armed with an assault rifle.

"That individual immediately opened up, began firing at the officer's patrol car," Pruitt said. "(Bullets hit) the patrol car several times. The officer was also shot during that exchange but was able to drive to a hospital."

Details about the police officer's recovery were scarce at the news conference.

"We still have an outstanding individual who tried to kill our police officer, so we don't want to divulge too much information about this police officer," Pruitt said.

The suspect was wearing a bullet-proof vest and carrying an assault rifle when he took an undisclosed amount of money from the bank.

Pruitt said the suspect is "not your common criminal doing a beer run."

"This individual obviously took some time to plan this event. He must have had some familiarity with this particular bank," Pruitt said.

Officials released detailed information about the suspect vehicle during the news conference.

Police officers are now looking for a newer-model, charcoal gray Nissan Maxima with tinted windows and chrome wheels.

The vehicle, with a "factory chrome package," has more chrome on it than other Maximas of this style - like chrome door handles - which would make it unique, officials said.

"I'm confident that someone who knows this person will recognize these photos - from the clothing worn, just to the way he stands, to the weapon," Roberts said.

"There's somebody out there who knows someone who has a weapon like this, who owns body armor or who may drive a car like that."